Shandong Huasheng Zhongtian Machinery Group Co., Ltd. Shandong Huasheng Zhongtian Engineering Machinery Co., Ltd.
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是否堵塞
汽油机功率不足
阻
塞
检查阻风门是否打开
检查空滤器
打 开
塞
查化油器的量孔主喷嘴
不堵
检
正常
火花塞性能检测
燃油充足
检查压缩压力
压缩压力正常
安装火花塞，根据起动
步骤，重新起动
活塞环、活塞磨损
必要时更换化油器
拆卸、清洁
清洁空滤器
打开阻风门关 闭
阻
无火花
花弱
机故障，排除
火花塞故障，更换
压缩压力
不正常
燃烧室积碳
活塞环是否烧结
缸体内壁是否磨损
火花塞是否松动
检查
塞
或火
磁电
检查
检查
检查
检查
3.6 Fault Diagnosis and Remedy
1. Failure in start or tough startup
Symptom Cause Remedy
Spark plug electrodes are wet Dry them
Spark plugs have carbon deposition Clear off the carbon deposition
Spark plug insulation layers are damaged Replace spark plug
Spark plug clearance is excessively big or
small
Adjust it to 0.5 ～0.7
Spark plug
Spark plug electrodes are burnt Replace spark plug
High voltage cables are damaged Replace high voltage cables
Stator is damaged or burnt Replace stator
No
sparks
from
spark
plug
Magneto
High voltage cables are in bad contact with
clamping spring
Repair the clamping spring
Suck excessive fuel Reduce oil supply Compression
performance is normal;
supply fuel
Fuel is too dirty, in poor quality and
contains water
Replace fuel
Cylinder body or piston ring is damaged Replace
Spark plugs are loose Fasten
Gas leaks from crank case surface Replace seal ring
Supply oil, but
compression
performance is not
normal
Gas leaks from cylinder body surface Replace seal gasket
No fuel in fuel tank Fill it with fuel
Filter screen is clogged Clean it
Carburetor does not
supply oil
Air vents of fuel tank are clogged Clear
Spark
plug
with
fire
Carburetor Carburetor malfunctions
Eliminate it. See Carburetor
Disassembly and Cleaning for details
Gasoline engine power is
insufficient
Check that choke is opened Open the choke
Close
Opened
Check air filter Clean the air filter
Clogged
Not clogged
Check that the main jet of carburetor
is clogged
Remove and clean air filter; replace
the carburetor if necessary
Clogged
Normal
Magneto malfunctions; eliminate the
fault of spark plug and replace it
Without spark
or weak spark
Check and test performance of spark
plug
Fuel is sufficient
Compression pressure is
normal
Fit the spark plug and restart the
engine according to starting steps
Compression
pressure is
abnormal
Check piston rings and pistons for wear
Check that the combustion chambe
ha
Check compression pressure
s carbon depositions
heck that the piston rings ar
heck that the internal wall of
C e sintered
C cylinde
is worn
Check that spark plugs are loose
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